RESUMO -O objetivo deste estudo foi o de avaliar a quantidade e qualidade da deposição da calda de pulverização em plantas de Commelina benghalensis, considerando os volumes de aplicação, as pontas de pulverização e o ângulo dos bicos na barra de pulverização. . Palavras-chave: volume de aplicação, tecnologia de aplicação, planta daninha, trapoeraba.ABSTRACT-The objective of this study was to evaluate the quantity and quality of spray deposition on Commelina benghalensis plants, considering application volumes, spray nozzles and spray nozzle bar angle. Five stems of plants/pot were planted. The experimental treatments were arranged in a randomized design with twenty replications. The experiment was carried out under greenhouse conditions and the solution applied 40 days after the stems were transplanted, with the plants being 30 to 40 cm long. The treatments consisted of five spray nozzles (TX-VK 6, TX-VK 8, XR 11001 VS, XR 11002 VS and TJ60 11002 VS), tested at different application angles (0 o and +30 o ) except for TJ60 11002 VS, and two different solution volumes (100 and 200 L ha -1 ). Brilliant blue FDC-1 was used as a tracer solution, at 500 ppm to determine spray deposition. After application, twenty plant stems were immediately collected, and washed in 100 mL of distilled water for posterior tracer quantification in a spectrophotometer. The data was fit to a regression curve using the Gompertz model. The results showed that, regardless of the type of spray nozzle used, the volume of 200 L ha -1 provided the highest deposition on the plants. The XR 11001 VS nozzle, with volume of 100 L ha -1 provided the best uniformity deposition. However, when using the angle of +30 o , deposition increases occurred when the volume of 100 L ha -1 was used, with best uniformity being obtained with volume of 200 L ha -1 .

The study aimed to assess application efficiency of Mo doses through leaves in two sowing dates and different phenological stages on agronomic characteristics of two peanut cultivars. The experimental design was a randomized block with four replications, with the treatments arranged in a factorial design 2 x 2 x 6 x 2, being two cultivars (IAC Tatu and IAC 886), two sowing dates, six Mo doses applied to the leaves (0, 50, 100, 200, 400 and 800 g ha-1) and two application times (early flowering and early seed formation). Were evaluated the number of pods/plant, the number of grains/pod, the weight of 100 grains, the yield of grain, the pod production and protein, lipids and the Mo contents in the grains. The highest pod yields were obtained with sowing in November, for both cultivars. The IAC 886 presents a significantly higher production than IAC Tatu when sown in November. When the seeds were sown in March, the cultivars showed similar productions. Foliar application of Mo at flowering and pod formation did not affect the agronomic characteristics, protein and lipid contents in peanut grains. The increase in Mo doses increased the content of this micronutrient in the grains.